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Limestone flue gas desulphurization (FGD) units are well-proven and cost-effective. ANDRITZ provides novel scrubber system (FGDplus) that maximizes SO2 and dust removal while keeping energy inputs to a minimum.
The nucleus of our design is the unique scrubber, which is an open spraying tower that has been enhanced in recent years using computerized simulation techniques. Former AE&E has been conducting intensive development work in this field since 1995 and today enjoys a leading position which not only allows us to simulate flow and temperature profiles, but also to calculate the distribution of SO 2 concentrations in the scrubber.
During comparisons of simulator data with actual plant measurements, the flow and temperature profiles have verified our design parameters. The result is a scrubber that is characterized by minimum dimensions, adaptable scrubber entry and exit geometry, and the optimum layout of the spray nozzles and spray banks. This results in a uniform SO 2 profile in combination with the highest possible superficial velocity in the scrubber – removing the most pollutants and utilizing the least power.
The scrubber also benefits from the use of the latest materials and construction methods. GRP absorbers and reinforced concrete absorbers with polypropylene linings are used in addition to the proven steel absorbers with a variety of inner linings or stainless steel.
Outstanding for all fuels (lignite, hard coal, oil, biomass, waste) SO 2 removal >99% Maximum HCl and HF removal levels Gypsum as a saleable end product Flue gas volume flows of up to 5,000,000 m 3/h [stp, wet] per scrubber Limestone as a favorably priced absorption agent Low operating costs and power consumption Open spray tower, low pressure loss Options for materials of construction (high alloy, carbon steel with rubber lining, concrete with PP-lining, glass fiber reinforced plastics)
Starting with CFD modeling and lab investigations, ANDRITZ Clean Air Technologies further developed the conventional mass transfer concept for flue gas desulphurization scrubbers. Following prototyping and test plant work, we can now refer to operation at a pilot plant under actual power station conditions. The pilot plant was installed at the Niederaußem power plant in cooperation with RWE.
ANDRITZ delivers environmentally friendly flue gas cleaning solutions, tailored to the needs of our clients and their operating environments. We are an environmental technology pioneer with a history in clean air technologies spanning 30+ years. Our products range from flue gas scrubbers and SCRs for power stations to complex flue gas cleaning systems for waste-to-energy and industrial plants. Use of cutting-edge engineering tools and global R&D collaboration with a network of recognized partners and universities are the foundations of our work. Early identification of each client’s needs help us make a long-term contribution to clean air and a clean environment.
Utility power industry Waste to Energy / Energy from Waste / Sludge incineration Pulp & Paper Mining & Metals industry Oil & Refinery industry
ANDRITZ dry flue gas cleaning systems meet the requirements for complying with the world’s strictest emissions legislation, the desire for low consumption of additives, the need for minimal residues, and the installation simplicity of a compact design.
ANDRITZ offers seawater flue gas desulphurization with low operating and maintenance cost for coastal regions.
Clean Air Technologies – Clean environment for a better tomorrow
The global economy is in constant need of power, which is still mainly provided by coal, oil and gas – fossil fuels that are finite and harmful to the environment over their whole value chain. Other more sustainable resources such as municipal waste or sludge have started to establish their position in the industry and are gaining more attention now due to the global effort to develop and install solutions that will minimize CO2 emissions.
Reliable, efficient power generation from traditional and renewable fuels
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